<xml>
    <ToUserName><![CDATA[{$FromUserName}]]></ToUserName>
    <FromUserName><![CDATA[{$ToUserName}]]></FromUserName>
    <CreateTime>{$time}</CreateTime>
	<MsgType><![CDATA[music]]></MsgType>
<Video>
	<MediaId><![CDATA[media_id]]></MediaId>
	<Title><![CDATA[{$v.title}]]></Title>
	<Description><![CDATA[{$v.desc}]]></Description>
</Video> 
</xml>